<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>示例-获取焦点</title>
    <!-- 初始化样式 -->
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/reset.css@2.0.2/reset.min.css"
    />
    <!-- 核心样式 -->
    <style>
      html,
      body {
        height: 100%;
      }
      .search-container {
        position: absolute;
        top: 30%;
        left: 50%;
        transform: translate(-50%, -50%);
        text-align: center;
      }
      .search-container .search-box {
        display: flex;
      }
      .search-container img {
        margin-bottom: 30px;
      }
      .search-container .search-box input {
        width: 512px;
        height: 16px;
        padding: 12px 16px;
        font-size: 16px;
        margin: 0;
        vertical-align: top;
        outline: 0;
        box-shadow: none;
        border-radius: 10px 0 0 10px;
        border: 2px solid #c4c7ce;
        background: #fff;
        color: #222;
        overflow: hidden;
        box-sizing: content-box;
        -webkit-tap-highlight-color: transparent;
      }
      .search-container .search-box button {
        cursor: pointer;
        width: 112px;
        height: 44px;
        line-height: 41px;
        line-height: 42px;
        background-color: #ad2a27;
        border-radius: 0 10px 10px 0;
        font-size: 17px;
        box-shadow: none;
        font-weight: 400;
        border: 0;
        outline: 0;
        letter-spacing: normal;
        color: white;
      }
      body {
        background: no-repeat center / cover;
        background-color: #edf0f5;
      }
    </style>
  </head>

  <body>
    <div class="container" id="app">
      <div class="search-container">
        <img src="https://www.itheima.com/images/logo.png" alt="" />
        <div class="search-box">
          <input type="text" v-model="words" id="inp" />
          <button>搜索一下</button>
        </div>
      </div>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
    <script>
      const app = new Vue({
        el: "#app",
        data: {
          words: "",
        },
        // 核心思路：
        // 1. 等input框渲染出来 mounted 钩子
        // 2. 让input框获取焦点 inp.focus()
       mounted(){
        document.querySelector('#inp').focus()
       }
      });
    </script>
  </body>
</html>
